OpenGame BMad GDD Generator
The Planning Layer. An AI-orchestrated team that turns your game idea into implementation-ready specifications.
A Complete Design Studio
Not just a chatbot. A coordinated system of specialized agents, tasks, and quality gates.
Specialized Agents
From System Architects to Narrative Designers
Design Tasks
Structured steps for every discipline
Templates
Standardized output formats
Quality Checklists
Validation gates before handoff
30 Specialized Agents
Experts for every domain. They work together to ensure your GDD is complete, consistent, and ready for development.
Core Architects
System, Experience, and World design leaders.
Domain Experts
Mechanics, Tech, UI/UX, Art, Audio, Narrative.
Platform Specialists
Mobile, PC/Console, Web, VR/AR optimizations.
Business & QA
Monetization, LiveOps, Market Analysis, and Testing.
27 Specialized Workflows
Tailored processes for your specific game type, platform, and market goals.
Workflow Categories
Popular Workflows
- Comprehensive GDD Creation
- Rapid Prototype GDD
- Mobile Game GDD
- Action RPG Design
- F2P Monetization GDD
Frequently Asked Questions
How the generator fits into your pipeline.
How is this different from just chatting with ChatGPT?
ChatGPT is a generalist. This is a system of 30 specialized agents with defined roles, handoff protocols, and quality gates. It produces a structured file system of GDD chapters, not just a chat log.
What is the output format?
Standardized Markdown files that follow the OpenGame GDD Protocol. These files are version-controllable (Git) and readable by our BMad Game Dev agents.
Can I customize the agents?
Yes. The system is built on a modular architecture where you can swap out agent personas or modify their instructions and checklists.
Do I need the BMad Game Dev stack to use this?
No. The GDD output is human-readable and standard. You can hand it to human developers. However, using the BMad Game Dev stack allows for automated code generation from these specs.
Ready to Plan Your Game?
Turn your idea into a professional GDD in minutes, not months.